I apologize in advance for being a pedant but since you do say you find it interesting, "pas besoin" is used in the context of [subject] don't/doesn't need [nou

I apologize in advance for being a pedant but since you do say you find it interesting, "pas besoin" is used in the context of [subject] don't/doesn't need [noun] rather than in the sense of having "no needs" which would be written "pas de besoin".